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Technical Physics Letters

, Volume 42, Issue 8, pp 860–864 | Cite as

Flux-gate magnetic field sensor based on yttrium iron garnet films for magnetocardiography investigations

  • P. M. Vetoshko
  • N. A. GusevEmail author
  • D. A. Chepurnova
  • E. V. Samoilova
  • I. I. Syvorotka
  • I. M. Syvorotka
  • A. K. Zvezdin
  • A. A. Korotaeva
  • V. I. Belotelov
Article

Abstract

A new type of f lux-gate vector magnetometer based on epitaxial yttrium iron garnet films has been developed and constructed for magnetocardiography (MCG) investigations. The magnetic field sensor can operate at room temperature and measure MCG signals at a distance of about 1 mm from the thoracic cage. The high sensitivity of the sensor, better than 100 fT/Hz1/2, is demonstrated by the results of MCG measurements on rats. The main MCG pattern details and R-peak on a level of 10 pT are observed without temporal averaging, which allows heart rate anomalies to be studied. The proposed magnetic sensors can be effectively used in MCG investigations.

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Copyright information

© Pleiades Publishing, Ltd. 2016

Authors and Affiliations

  • P. M. Vetoshko
    • 1
    • 2
  • N. A. Gusev
    • 1
    • 3
    Email author
  • D. A. Chepurnova
    • 1
    • 4
  • E. V. Samoilova
    • 1
    • 4
  • I. I. Syvorotka
    • 5
  • I. M. Syvorotka
    • 5
  • A. K. Zvezdin
    • 1
    • 3
  • A. A. Korotaeva
    • 1
    • 4
  • V. I. Belotelov
    • 1
    • 6
  1. 1.Russian Quantum CenterSkolkovo, Moscow oblastRussia
  2. 2.Kotelnikov Institute of Radio Engineering and ElectronicsRussian Academy of SciencesMoscowRussia
  3. 3.Prokhorov General Physics InstituteRussian Academy of SciencesMoscowRussia
  4. 4.Russian Cardiology Research and Production ComplexMinistry of Public Health of the Russian FederationMoscowRussia
  5. 5.Research Center CaratLvivUkraine
  6. 6.Moscow State UniversityMoscowRussia

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